CHESTER, PA -- There's a kind of Brigadoon quality to a U.S. Open Cup final.

Arriving at PPL Park on Tuesday night, as the temporary inflatables, DJ stands and marquees were going up for the crowds -- and occasionally checking the social temperature on Twitter -- there was a palpable sense of an event that had somehow materialized from nothing, and that like the magical Scottish village that appears only once every hundred years, would disappear unremarked.

CHESTER, Pa. -- Clint Dempsey and Obafemi Martins led the Seattle Sounders to their fourth U.S. Open Cup title Tuesday night, scoring in overtime in a 3-1 victory over the Philadelphia Union.

Dempsey, the U.S. national team captain, scored in the 101st minute on a left-footed blast off Martins' feed. Martin scored in the 114th minute after speeding around Union defender Ray Gaddis and poking one past goalkeeper Zac MacMath.

TUKWILA, Wash. -- Struggling for playing time and scoring, Andy Rose showed he can deliver now that he's healthy again.

Rose and Kenny Cooper each scored two goals and the Seattle Sounders routed the Chicago Fire 6-0 in their U.S. Open Cup semifinal Wednesday night.

Major League Soccer-leading Seattle will face the Philadelphia Union on Sept. 16 in the final in Chester, Pennsylvania. Philadelphia advanced on the road Tuesday night, beating FC Dallas on penalty kicks.

The Sounders celebrate the first of two Andy Rose goals as they rolled into the U.S. Open Cup finals beating Chicago 6-0

TUKWILA, Wash. -- Struggling for playing time and scoring, Andy Rose showed he can deliver now that he's healthy again.

Rose and Kenny Cooper each scored two goals and the Seattle Sounders routed the Chicago Fire 6-0 in their U.S. Open Cup semifinal Wednesday night.

Major League Soccer-leading Seattle will face the Philadelphia Union on Sept. 16, in the final in Chester, Pennsylvania. Philadelphia advanced on the road Tuesday night, beating FC Dallas on penalty kicks.